Derailing-frog.



tnesse 5 No. 792,807. PATENTED JUNE 20, 1905.

W. Y. BAIN.

' DERAILING FROG.

APPLIOATION FILED APR. 15.1005.

EM I-IIIIL Attorneys Patented June 20, 1905.

PATENT OEEIcE.

WILLIAM Y. BAIN, OF BARTLETT, TEXAS.

DERAILING-FROG.

SPECIFICATION forming part of Letters Patent No. 792,807, dated June 20, 1905.

Application filed April 15,1905. Serial No. 255,766.

To all whom, it may concern.-

Be it known that 1, WILLIAM Y. BAIN, aciti- Zen of the United States, residing at Bartlett, in the county of Williamson and State of Texas, have invented a new and useful Derailing- Frog, of which the following is a specification.

This invention relates to devices for protecting the main lines of railways from the danger of cars accidentally running thereon from sidings or switch tracks, and has for its object to provide a simply-constructed and easilyapplied device by which the cars which would otherwise run upon the main line, and thereby endanger passing trains, are diverted laterally and caused to leave the siding-track at the side opposite from the main-line tracks.

With these and other objects in view, which will appear as the nature of the invention is better understood, the same consists in certain novel features of construction, as hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, and in which corresponding parts are denoted by like designating characters, is illustrated the preferred form of embodiment of the invention capable of carrying the same into practical operation, it being understood that the invention is not necessarily limited thereto, as various changes in the shape, proportions, and general assemblage of the parts may be resorted to without departing from the principle of the invention or sacrificing any of its advantages.

in the drawings thus employed, Figure 1 is a perspective view of the improved device applied. Fig. 2 is a transverse section with the device closed or in operative position, and Fig. 3 is a transverse section with the device open or'in inoperative position.

The improved device comprises a body member for resting upon the head portion of the rail 11 and with spaced longitudinal ribs 12 13 upon the under side for bearing upon either side of the head portion when the device is in operative position, as in Figs. 1 and 2, and with reversely-disposed oblique channels 14 15 in the upper face, as shown in Fig. 1.

The plate 10 extends laterally at one side,

so that the outer end or entrances to the channels 14: 15 are disposed inside the inner face of the head of the rail 11 while the inner ends or outlets of the channels are disposed centrally of the plate and beyond the outer faces of the rail-heads, as represented in Fig. 1. The ends of the plate 10 are inclined, as at 16 17, to guide the treads of the wheels upon the same while the flanges of the wheels run into the channels 14 or 15, as the case may be. Extending from the plate 10 are spaced arms 18, terminating in hinge members 19, and connected to the ties or other rail-foundation 20 are brackets 21, having hinge members 22, coupled to the hinge members 19 by pintles 23. By this means the plate 10 can be folded over out of the way, as in Fig. 3, when not required. Extending from the opposite side of the plate 10 is an arm 24, having an aperture for engaging a perforated stud 25, extending from one of the ties 20, the perforated stud to receive a look, as at 26, to secure the plate in its operative position and prevent surreptitious releasing of the same. The plate 10 is thus double-acting or so arranged to receive cars when coming from either direction and will be located upon the outer rails of sidings or switch-tracks sufficiently far from the switches leading to the main lines to receive the cars and deflect them away from the main-line tracks before they can approach near enough to the same to become dangerous to passing trains.

The improved device will be placed in open or inoperative position, as in Fig. 2, when not required or when the cars are being run upon the sidingtraeks, and then after the cars are thus positioned the plate is turned over upon the rail and locked in position, as before described. Then if from any cause the cars stationed upon the side tracks become released and start to move upon the main line the improved device will receive the wheels and defleet them laterally away from the main line and derail the cars in that direction and effectually prevent accidents or collisions, as will be obvious. The device may also be employed to ad vantage upon the siding or switch tracks employed in freight-houses, roundhouses, repair-shops, and the like, as'will be obvious.

The plate being double-ended can be located without structural change at either end of the siding or switch track, thus obviating the necessity for providing two sets of the devices or right or left handed plates, thus materially increasing the utility and convenience of the same.

The plate 10, together with its ribs and channels and arms, will preferably be cast in one piece of steel or other metal and as light as possible consistent with the strains to which they Will be subjected.

Having thus described the invention, what is claimed is 1. In a derailing-frog, a plate having longitudinally-disposed ribs upon the under surface at one side and spaced apart for bearing upon opposite sides of the head portion of the rail and with reversely-disposed guide-channels in the upper face extending obliquely to the longitudinal plane of the plate, the inner ends of said oblique channels merging centrally of the plate at one side and the outer ends of said channels terminating at the opposite ends of the plate and at the opposite side of the same.

2. In a derailing-frog, a plate having longitudinally-disposed ribs upon the under surface at one side and spaced apart for bearing upon spaced arms extending laterally from said plate at one side and terminating in hinge members, and brackets for attachment to the ties and provided With hinge members for engaging the hinge members of said lateral arms.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two Witnesses.

WILLIAM Y. BAIN. 

